Syringe bag



Feb. 24, 1953 D. E. PARKS SYRINGE BAG Filed April 2, 1951 IN V EN TOR.DOROTHY f. Qwxs A T TOPNE Y Patented Feb. 24, 1953 UNITED STATES PATENTOFFICE SYRINGE BAG Dorothy E. Parks, Avalon, Calif.

Application April 2, 1951, Serial No. 218,820

3 Claims. 1

This invention relates to syringes for the purpose of administeringfluids such as antiseptic or medicinal solutions.

The principal object of the invention is to provide an inexpensivedisposable syringe which may be discarded after use.

Another object is to provide a disposable syringe which may be containedin a compact package of minimum size and weight.

Another object is to provide a disposable syringe of thin, relativelyfragile, membranous material, the syringe being so formed as to enablesuspending of the same even when filled with fluid.

A further object is to provide a disposable syringe havingself-contained means for applying an antiseptic or medicinal agent to afluid when filling the syringe.

The manner in which the above and other objects of the invention areaccomplished will be readily understood upon reference to the followingspecification when read in conjunction with the accompanying drawings,wherein:

Fig. 1 is a. front view of a syringe embodying a preferred form of myinvention.

Fig. 2 is a side view of the syringe, with parts broken away,illustrating the same in suspended condition.

Referring to the drawings, the syringe illustrated therein comprises aconical reservoir or container l which is integral, at the lower endthereof, with a tube H. The container and tube are preferably formed ormolded into a one piece element but may also be separately formed andlater joined in any suitable manner such as by cement or the applicationof heat.

Both the reservoir Ill and tube H are formed of a very thin, flexible,membranous material, preferably transparent and of the order of .002 to.005 inch in thickness. Cellulose and other plastic materials such asthose known under the trade names of cellophane, Pliofilm and Vinylitemay be used.

The tube H is elongated to a desired length and is of a uniform diameterequal to the diameter of the lower end of the reservoir 10.

The lower end of the tube H is integrally attached to the interior of acylindrical nozzle or tip I? of a relatively stiff plastic material.

The upper end of the container I0 is open and the edge forming thisopening is inclined upwardly toward the rear. Also, the upper edge isturned or bent inwardly upon itself to form a strengthening flange orlip I3.

The lip l3, instead of being formed of equal width throughout, is formedshorter at the front of the container than at the rear. Because of thisparticular shape of the lip, and because of the rearward inclination ofthe upper lip, a surplus of material is obtained in the rear portion ofthe lip. This material is folded over on itself to form four thicknessesof material resulting in the two divergent edges M and I5.

The overlapping portions of the lip are suitably cemented together andto the body portion of the container, and a. hole 16 is formed throughthe resulting four thicknesses to enable the syringe to be suspendedfrom a suitable hook or the like as at ll, extending from a wall withouttearing the fragile material even when the syringe is filled withliquid.

Suitable valving or clamp means (not shown) may be applied to the tube Il anywhere along its length to close off the flow of fluid therethroughwhen desired.

By inclining the top edge of the reservoir, the lip l3 will be placed intension in order to aid in supporting the syringe and to reduce thetendency of the fluid to burst the reservoir, particularly near the top,upon filling. Also, a flexible tie piece l8 of the same or similarmaterial is preferably cemented or otherwise attached at its endsbetween the front and rear portions of the container to aid inpreventing undue distension of the upper part of the container due tothe weight of the fluid. The piece I8 also forms a handle to enablecarrying of the syringe from place to place when filled with fluid. Therear end of the piece [8 is bent upwardly to form a tab which issuitably cemented to the overlapped portions of the lip 13 and the hole(6 is passed therethrough, thereby further strengthening the portionsurrounding the hole against the possibility of tearing.

A capsule l9 of antiseptic or medicinal agent may be cemented orotherwise attached to the interior of the reservoir 10, the capsulebeing formed of a fluid soluble material so as to dissolve upon fillingthe reservoir and thereby admix the agent in the fluid.

In packaging the syringe, the tube l I, and then the reservoir [0, iswrapped in successive layers over the nozzle i2 into a compact packageconvenient for handling and carrying. By virtue of the resulting smallpackage into which the syringe may be formed, it can be readilydistributed in vending machines, and the cost of packing and shipping ismaterially reduced.

In view of the transparency, or at least translucency, of the membranousmaterial forming the syringe, a person may readily determine the liquidlevel and inspect the liquid or solution.

The container and tube may be formed of either seamless or seamedmaterial without de parting from the spirit or scope of the invention asset forth in the appended claims.

Having thus described the invention, what I desire to secure by UnitedStates Letters Patent 1. A disposable syringe comprising a fluidcontainer of membranous material open at the top thereof, an elongatedtube of membranous material integral at one end thereof with the bottomof said container, the top of said container being inclined to thehorizontal and having a part bent over to form a flange extending intothe interior of said container, the portions of said part adjacent thehighest point of said container being overlapped, and a hole extendingthrough said overlapped portions whereby to suspend said syringe on asuitable support.

2. A disposable syringe comprising a fluid container of membranousmaterial open at the top thereof, an elongated tube of membranousmaterial integral at one end thereof with the bottom of said container,the top of said container being inclined to the horizontal and having apart bent over to form a flange extending into the interior of saidcontainer, the portions of said part adjacent the highest point of saidcontainer being overlapped, a handle piece extending between oppositeportions of said container, said piece having a tab attached to saidoverlapped portions, and a hole extending through said overlappedportions and said tab whereby to suspend said syringe on a suitablesupport.

3. A disposable syringe comprising a conical fluid container ofmembranous material open at the top thereof and converging downwardly,an elongated tube of membranous material integral at one end thereofwith the bottom of said container, the top of said container beinginclined to the horizontal and having a part bent over to form a flangeextending into the interior of said container, the portions of said partadjacent the highest point of said container being overlapped, and ahole extending through said overlapped portions whereby to suspend saidsyringe on a suitable support.

DOROTHY E. PARKS.

REFERENCES CITED The following references are of record in the file ofthis patent:

UNITED STATES PATENTS Number Name Date 744,656 Wider Nov. 17, 19031,294,219 Andrus Feb. 11, 1919 1,768,796 Sleeper July 1, 1930 2,568,915Friedman Sept. 25, 1951

